update Code

libraries/FlowMeter-master/examples/Simulator/Simulator.ino

@@ -0,0 +1,43 @@
+#include <FlowMeter.h>  // https://github.com/sekdiy/FlowMeter
+
+// let's provide our own sensor properties, including calibration points for error correction
+FlowSensorProperties MySensor = {60.0f, 4.5f, {1.2, 1.1, 1.05, 1, 1, 1, 1, 0.95, 0.9, 0.8}};
+
+// let's pretend there's a flow sensor connected to pin 3
+FlowMeter Meter = FlowMeter(3, MySensor);
+
+void setup() {
+    // prepare serial communication
+    Serial.begin(9600);
+
+    // sometimes initializing the gear generates some pulses that we should ignore
+    Meter.reset();
+}
+
+void loop() {
+    // randomly change simulation period and pulse rate
+    long frequency = random(MySensor.capacity * MySensor.kFactor);  // Hz
+    long period = random(3 * frequency, 5000);                      // ms
+
+    // simulate random flow meter pulses within a random period
+    for (long i = 0; i < (long) ((float) period * (float) frequency / 1000.0f); i++) {
+        Meter.count();
+    }
+
+    // wait that random period
+    delay(period);
+
+    // process the counted ticks
+    Meter.tick(period);
+
+    // output some measurement result
+    Serial.println("FlowMeter - period: " + String(Meter.getCurrentDuration() / 1000.0f, 3) + "s, " +
+                  "frequency: " + String(Meter.getCurrentFrequency(), 0) + "Hz, " +
+                  "volume: " + Meter.getCurrentVolume() + "l, " +
+                  "flow rate: " + Meter.getCurrentFlowrate() + "l/min, " +
+                  "error: " + Meter.getCurrentError() + "%, " +
+                  "total duration: " + Meter.getTotalDuration() / 1000.0f + "s, " +
+                  "total volume: " + Meter.getTotalVolume() + "l, " +
+                  "average flow rate: " + Meter.getTotalFlowrate() + "l/min, " +
+                  "average error: " + Meter.getTotalError() + "%.");
+}